I't so funny that I was reading down this two page list and I have every single one of those in my favs folder already. Pete Millet's site is an immense wealth of literature! I've downloaded so many books from his site. I've emailed him about some old MacIntosh Amps I have. Nice guy.

Here's a several other resources that I've used in the past that I didn't see on the list yet:

Trinity amps has a great forum and lots of good layouts and schematics for download.http://www.trinityamps.com/phpbb/index.phpI build a modified version of the Plexi MKII super lead "brown" It is an awesome 18 watt high gain amp.